Happening @ Michigan https://events.umich.edu/list/rss RSS Feed for Happening @ Michigan Events at the University of Michigan. Smith Lecture: Reading Molecular Messages: Structural Elucidation of the Marine Environmental Metabolome (September 10, 2021 3:30pm) https://events.umich.edu/event/83650 83650-21452142@events.umich.edu Event Begins: Friday, September 10, 2021 3:30pm
Location: 1100 North University Building
Organized By: Earth and Environmental Sciences

The exchange of metabolites between algae and bacteria is essential for maintaining ecosystem structure and function.Numerous organic molecules have been shown to facilitate ecologically important partnerships, including signaling molecules used for cell-cell communication and the exchange of organic nutrients as sources of energy, carbon and essential metabolites. In addition, the 600 Gt C marine dissolved organic matter reservoir harbors slow degrading molecules whose sources are poorly known, in part because the composition of this reservoir remains enigmatic. In this talk I will describe some of the different analytical approaches we are taking to elucidate the organic currencies involved in maintaining ecosystem interactions and modulating global carbon cycling.

Those wishing to attend remotely should log in to Zoom ID#989 8458 7392

Please note:
Before entering any U-M building, all visitors, contractors and vendors are required to complete a preliminary health screening via the guest version of ResponsiBLUE. The questionnaire includes information about U-M's face covering policy and expectations for unvaccinated individuals to continue to mask and distance while indoors on any of U-M's campuses.

Go to: https://campusblueprint.umich.edu/prevention-testing-care/prevention/responsiblue/

]]>
Lecture / Discussion Fri, 10 Sep 2021 12:11:40 -0400 2021-09-10T15:30:00-04:00 2021-09-10T16:30:00-04:00 1100 North University Building Earth and Environmental Sciences Lecture / Discussion 1100 North University Building
Smith Lecture: Chronicles of the 2018 Kīlauea Volcano Eruption: Causes, Consequences, and Community Efforts to Document an Unprecedented Geologic Event (September 17, 2021 3:30pm) https://events.umich.edu/event/83651 83651-21452143@events.umich.edu Event Begins: Friday, September 17, 2021 3:30pm
Location: 1100 North University Building
Organized By: Earth and Environmental Sciences

The 2018 flank eruption and summit collapse of Kīlauea volcano, one of the largest volcanic events in Hawaiʻi in 200 years, was an event of stunning sequences and epic destruction. At 5:00PM HST on May 3, 2018, the first of 24 eruptive fissures tore open along the lower East Rift Zone (LERZ) of Kīlauea volcano. Nineteen hours later, a M6.9 earthquake, the largest event in 43 years, displaced a substantial section of Kīlauea’s south flank ~1-3 m seaward. For several days to weeks following this event, unprecendented subsidence of Kīlauea’s summit accelerated due to partial draining of the underlying magma system. Accompanying this remarkable deformation event were several impressive explosions and over 50 near-daily ~M5 summit collapse events. Concurrently, lava erupted on the LERZ with a variety of styles and compositions, producing lava flows covering 35 km2 and adding 3.5 km2 of new shoreline to Hawaiʻi Island. By August 4 however, summit collapse ceased and the major LERZ eruption also came to an end. This spectacular 3-month sequence of events provided an unprecedented opportunity to image volcanic and tectonic deformation in near-real time and to advance community hazard response and recovery efforts, in preparation for the next major event to strike Earthʻs most active volcano.

Those wishing to attend remotely should log in to Zoom ID#989 8458 7392

Please note:
Before entering any U-M building, all visitors, contractors and vendors are required to complete a preliminary health screening via the guest version of ResponsiBLUE. The questionnaire includes information about U-M's face covering policy and expectations for unvaccinated individuals to continue to mask and distance while indoors on any of U-M's campuses.

Go to: https://campusblueprint.umich.edu/prevention-testing-care/prevention/responsiblue/

]]>
Lecture / Discussion Fri, 10 Sep 2021 12:29:41 -0400 2021-09-17T15:30:00-04:00 2021-09-17T16:30:00-04:00 1100 North University Building Earth and Environmental Sciences Lecture / Discussion 1100 North University Building
Smith Lecture: Silver & Gold New Insights to Wire Formation (September 24, 2021 3:30pm) https://events.umich.edu/event/83652 83652-21452144@events.umich.edu Event Begins: Friday, September 24, 2021 3:30pm
Location: 1100 North University Building
Organized By: Earth and Environmental Sciences

Much more common in silver than in gold, the unusual morphology know as a “wire” can resemble the finest of threads to the strongest of ropes. Although they have adorned the shelves of mineral collections for centuries, very little has been known about wire specimens until recently. Are they single crystals or bundles of many fibrous crystals? How do they grow? Some have suggested extrusion. Answers to these questions and discovery of unexpected and yet unexplained isotope compositions have resulted from our work.

Those wishing to attend remotely should log in to Zoom ID#989 8458 7392

Please note:
Before entering any U-M building, all visitors, contractors and vendors are required to complete a preliminary health screening via the guest version of ResponsiBLUE. The questionnaire includes information about U-M's face covering policy and expectations for unvaccinated individuals to continue to mask and distance while indoors on any of U-M's campuses.

Go to: https://campusblueprint.umich.edu/prevention-testing-care/prevention/responsiblue/

Dr. John Rakovan is a professor of mineralogy at Miami University in Oxford, Ohio. John received his Ph.D. from the State University of New York at Stony Brook in 1996 and spent a year as a postdoctoral fellow at Virginia Tech before starting at Miami. He has broad research interests including crystal growth, structural and morphologic crystallography, mineral-water interface geochemistry, and mineral deposit formation.

]]>
Lecture / Discussion Fri, 10 Sep 2021 12:42:15 -0400 2021-09-24T15:30:00-04:00 2021-09-24T16:30:00-04:00 1100 North University Building Earth and Environmental Sciences Lecture / Discussion 1100 North University Building
Smith Lecture: Probing the Earth’s Deep Oxygen Cycle with Vanadium (October 8, 2021 3:30pm) https://events.umich.edu/event/83654 83654-21452146@events.umich.edu Event Begins: Friday, October 8, 2021 3:30pm
Location: 1100 North University Building
Organized By: Earth and Environmental Sciences

Throughout the Fall and Winter terms, the Department of Earth and Environmental Sciences hosts the William T. Smith Lecture Series that brings in distinguished speakers from other universities and research institutions. For Fall Term 2021, Smith Lectures will be presented as Zoom Webinars, open to the public. Login information will be provided in each event listing as it becomes available.

Those wishing to attend remotely should log in to Zoom ID#989 8458 7392

Please note:
Before entering any U-M building, all visitors, contractors and vendors are required to complete a preliminary health screening via the guest version of ResponsiBLUE. The questionnaire includes information about U-M's face covering policy and expectations for unvaccinated individuals to continue to mask and distance while indoors on any of U-M's campuses.

Go to: https://campusblueprint.umich.edu/prevention-testing-care/prevention/responsiblue/

]]>
Lecture / Discussion Mon, 27 Sep 2021 13:02:41 -0400 2021-10-08T15:30:00-04:00 2021-10-08T15:30:00-04:00 1100 North University Building Earth and Environmental Sciences Lecture / Discussion 1100 North University Building
Smith Lecture: Thermodynamics and the Microbial Colonization of Earth’s Suburface (October 15, 2021 3:30pm) https://events.umich.edu/event/83655 83655-21452147@events.umich.edu Event Begins: Friday, October 15, 2021 3:30pm
Location: 1100 North University Building
Organized By: Earth and Environmental Sciences

Geoscientists appreciate, if only from undergraduate textbooks, that functional groups of microbes in Earth’s subsurface arrange themselves into zones according to an energetic hierarchy, or a “thermodynamic ladder.” According to the theory of competitive exclusion, the functional group that derives the most chemical energy from its environment outcompetes other groups there, coming to overtake its habitat. We might observe sediments near an aquifer’s recharge populated by aerobes, followed downgradient by zones hosting iron-reducing bacteria, sulfate-reducers, and finally methanogens.

In this study we return to the Middendorf Aquifer in South Carolina—birthplace of the competitive exclusion theory—and the Mahomet-Teays Aquifer in central Illinois. There, we compile evidence of the nature of microbial zoning and the distribution of energy available to chemolithostatic life. Our field observations combined with a theoretical analysis of the effects of energetics on microbial kinetics, a set of long term laboratory experiments, and a series of bioreactive transport models portray the controls on the distribution of subsurface microbial life in a compelling, if surprising new light.

Those wishing to attend remotely should log in to Zoom ID#989 8458 7392

Please note:
Before entering any U-M building, all visitors, contractors and vendors are required to complete a preliminary health screening via the guest version of ResponsiBLUE. The questionnaire includes information about U-M's face covering policy and expectations for unvaccinated individuals to continue to mask and distance while indoors on any of U-M's campuses.

Go to: https://campusblueprint.umich.edu/prevention-testing-care/prevention/responsiblue/

]]>
Lecture / Discussion Fri, 10 Sep 2021 12:43:11 -0400 2021-10-15T15:30:00-04:00 2021-10-15T16:30:00-04:00 1100 North University Building Earth and Environmental Sciences Lecture / Discussion 1100 North University Building
Smith Lecture: Using Iron Isotopes to Understand Planetary Formation and Evolution (October 22, 2021 3:30pm) https://events.umich.edu/event/83656 83656-21452148@events.umich.edu Event Begins: Friday, October 22, 2021 3:30pm
Location: 1100 North University Building
Organized By: Earth and Environmental Sciences

Originated from similar building materials in the Solar System, Earth, other terrestrial planets, and large asteroids are widely different from each other as a result of distinct formation, differentiation, and evolution processes they experienced. Understanding these processes is vital to deciphering how planets achieved their current internal structure and chemical composition, the fate of volatiles throughout the geological history of a planet, and ultimately the favorable conditions leading to the development of habitable worlds. Recent advancement in mass spectrometry techniques enabled rapid exploitation in non-traditional isotope systems such as Fe and Cu, which brought us new ways to study planetary differentiation and evolution. In this talk, I will show how Fe isotopes can be used to understand planetary core crystallization and to trace deep subduction on Earth.

Those wishing to attend remotely should log in to Zoom ID#989 8458 7392

Please note:
Before entering any U-M building, all visitors, contractors and vendors are required to complete a preliminary health screening via the guest version of ResponsiBLUE. The questionnaire includes information about U-M's face covering policy and expectations for unvaccinated individuals to continue to mask and distance while indoors on any of U-M's campuses.

Go to: https://campusblueprint.umich.edu/prevention-testing-care/prevention/responsiblue/

]]>
Lecture / Discussion Fri, 10 Sep 2021 12:44:10 -0400 2021-10-22T15:30:00-04:00 2021-10-22T16:30:00-04:00 1100 North University Building Earth and Environmental Sciences Lecture / Discussion 1100 North University Building
Smith Lecture: Geological Applications of Metal and Transition Metal Isotope Analysis (November 5, 2021 3:30pm) https://events.umich.edu/event/83658 83658-21452150@events.umich.edu Event Begins: Friday, November 5, 2021 3:30pm
Location: 1100 North University Building
Organized By: Earth and Environmental Sciences

The talk will focus on how metal and transition metal isotope geochemistry can be used in various applications. Specifically, the talk will focus on Cu, Ag, and Sn isotope compositions of waters, rocks, ores and artifacts to address fundamental questions in the discipline. Case studies from the Pebble Cu-Au deposit in Alaska, Dexing Cu-Mo deposit in China, bronze artifacts of eastern Europe, and several more will be discussed.

Those wishing to attend remotely should log in to Zoom ID#989 8458 7392

Please note:
Before entering any U-M building, all visitors, contractors and vendors are required to complete a preliminary health screening via the guest version of ResponsiBLUE. The questionnaire includes information about U-M's face covering policy and expectations for unvaccinated individuals to continue to mask and distance while indoors on any of U-M's campuses.

Go to: https://campusblueprint.umich.edu/prevention-testing-care/prevention/responsiblue/

]]>
Lecture / Discussion Tue, 26 Oct 2021 08:59:40 -0400 2021-11-05T15:30:00-04:00 2021-11-05T16:30:00-04:00 1100 North University Building Earth and Environmental Sciences Lecture / Discussion 1100 North University Building
OS Info Night (November 9, 2021 5:30pm) https://events.umich.edu/event/88279 88279-21652022@events.umich.edu Event Begins: Tuesday, November 9, 2021 5:30pm
Location: 1100 North University Building
Organized By: Organizational Studies Program (OS)

Want to learn more about Organizational Studies?

Join us to hear more about this interdisciplinary major based in social sciences where students customize their own education. OS Info Night is an informational session for those students (typically first-years) that are interested in learning more about OS as a possible major.

OS Director Mark Mizruchi will give a brief overview of the program, and OS staff provide information on the curriculum, opportunities, admissions process, and possible career paths available to OS majors.

Do you think you would enjoy a small community of dedicated and ambitious students with access to top-notch faculty and an engaged alumni network? Then the OS major may be for you!

Please register to attend!

]]>
Reception / Open House Thu, 14 Oct 2021 15:54:02 -0400 2021-11-09T17:30:00-05:00 2021-11-09T19:00:00-05:00 1100 North University Building Organizational Studies Program (OS) Reception / Open House Students listening
Smith Lecture: Marine Iodine cycling and Redox Implications in Modern and Ancient Oxygen Minimum Zones (November 19, 2021 3:30pm) https://events.umich.edu/event/83660 83660-21452152@events.umich.edu Event Begins: Friday, November 19, 2021 3:30pm
Location: 1100 North University Building
Organized By: Earth and Environmental Sciences

Iodine is a redox-sensitive element and its abundance in sedimentary rocks and foraminifera is used as a paleoredox proxy. This includes redox transitions on scales varying from the Great Oxidation Event in the Precambrian to Pleistocene glacial-interglacial cycles. However, ancient applications and a modern understanding of dissolved iodine distribution are ultimately limited by a scarcity of empirical rates and an incomplete understanding of the mechanisms driving iodine oxidation and reduction in seawater today. In this talk, I will trace iodine cycling from seawater to sediments, including insights from oxygen minimum zones, laboratory and shipboard radioisotope (iodine-129) tracer experiments, diagenetic environments, and modeling into the controls on the distribution of iodine speciation in the ocean today. We will overview the implications for iodine and related elemental cycles as well as the redox state of ancient oceans across key events in Earth history.

Those wishing to attend remotely should log in to Zoom ID#989 8458 7392

Please note:
Before entering any U-M building, all visitors, contractors and vendors are required to complete a preliminary health screening via the guest version of ResponsiBLUE. The questionnaire includes information about U-M's face covering policy and expectations for unvaccinated individuals to continue to mask and distance while indoors on any of U-M's campuses.

Go to: https://campusblueprint.umich.edu/prevention-testing-care/prevention/responsiblue/

]]>
Lecture / Discussion Fri, 05 Nov 2021 14:43:57 -0400 2021-11-19T15:30:00-05:00 2021-11-19T16:30:00-05:00 1100 North University Building Earth and Environmental Sciences Lecture / Discussion 1100 North University Building
Smith Lecture: Isotope Evidence of High Pressure Subduction Metasomatism in Continental Ultrahigh-pressure Rocks (January 7, 2022 3:30pm) https://events.umich.edu/event/89100 89100-21660477@events.umich.edu Event Begins: Friday, January 7, 2022 3:30pm
Location: 1100 North University Building
Organized By: Earth and Environmental Sciences

Mica- and garnet-rich selvages are often developed around eclogitized mafic blocks within felsic gneiss in HP to UHP metamorphic terranes. The development of these metasomatic features ranges from readily identified reaction zones between the eclogite and host gneiss to shear zones where the spatial relationships between eclogite blocks and host gneiss are completely obscured. Block-selvage relationships within the Luliang Shan HP/UHP belt (North Qaidam, China) and the Tso Morari UHP terrane (NW Himalaya, India) approximate end members of the selvage preservation process. Here we apply whole-rock and incompatible trace element compositions coupled with B and O isotopic data in white mica to constrain the relationship of metasomatism vs. deformation during selvage formation. Within the Luliang Shan, extensive fluid flow formed thick, compositionally hybridized phengite- and garnet-bearing selvages between eclogite (SiO2 ~ 50%) and quartzofeldspathic gneiss (SiO2 ~ 80%). The Luliang Shan HP selvages have intermediate SiO2 and range from 5-10 m in thickness as “halos” around spheroidal eclogite blocks. Volatile enrichment at near-UHP conditions in the selvage is indicated by enrichment of Li, Cs, Ba, Ar, and δ18O and very light δ11B values in phengite. The retrograde muscovite from the host gneiss is low in Li, Cs, Rb, and Sr but possess remarkably high B concentrations (up to 3000 ppm) and positive δ11B values that are best explained by interaction with fluids devolatilized from accreted sediments within cooler regions of the subduction zone. Alternatively, the Tso Morari UHP terrane features boudinaged discoids of eclogite encased within highly strained quartzofeldspathic gneiss. Whole rock major element sampling performed normal to the foliation reveal consistently high SiO2 (78-80%). Highly variable degrees of metasomatic recrystallization occur within the phengite-rich rocks spatially associated with eclogite. Preliminary analyses of the selvage rocks exhibit heterogeneous degrees of enrichment in Li, Be, B, and Ba and yield δ11B values of -4 to -6‰ typical of undevolatilized oceanic and continental crust suggesting that fluid-mediated metasomatic reaction between eclogite and gneiss at Tso Morari is sheared out into lenses that are incorporated into, and heterogeneously distributed throughout, the host gneiss.

Those wishing to attend remotely: https://umich.zoom.us/j/98984587392

]]>
Lecture / Discussion Tue, 04 Jan 2022 15:15:17 -0500 2022-01-07T15:30:00-05:00 2022-01-07T16:30:00-05:00 1100 North University Building Earth and Environmental Sciences Lecture / Discussion 1100 North University Building
Smith Lecture: Illuminating the Mechanisms Underlying Great Transformations in Early Mammalian Evolution (January 21, 2022 3:30pm) https://events.umich.edu/event/89102 89102-21660480@events.umich.edu Event Begins: Friday, January 21, 2022 3:30pm
Location: 1100 North University Building
Organized By: Earth and Environmental Sciences

The Mesozoic–Cenozoic transition was an extremely turbulent interval defined by one of the most severe mass extinctions in Earth’s history—the Cretaceous–Paleogene (K–Pg) mass extinction—and was associated with rising mountain ranges, waxing and waning seas, and fluctuating climates. Mammalian evolution during this interval was similarly dynamic—once-dominant ‘archaic’ lineages went extinct, while new groups arose and diversified. Indeed, many of the biological traits that facilitated the mammalian rise to prominence in modern-day ecosystems trace their roots back to the Mesozoic–Cenozoic transition. In this talk, I will outline key features of my research program, which aims to elucidate the intrinsic and extrinsic drivers of these great transformations in early mammalian evolution. The intrinsic perspective focuses on the role that changes in behavior, life history, masticatory systems, and locomotion played in promoting or inhibiting the diversification of major mammalian groups. The extrinsic perspective focuses on the role that mountain uplift, and associated changes to river systems and climate, played in the diversification of mammals across the K–Pg boundary. This two-pronged approach is grounded in paleontological and geological fieldwork, the study of museum specimens, and is fundamentally collaborative, involving diverse analytical techniques and colleagues spanning the fields of paleontology, geology, and evolutionary biology. Ultimately, my goal is to use this integrative and interdisciplinary research program to illuminate the mechanisms underlying patterns of biodiversity in deep time.

If you wish to attend remotely: https://umich.zoom.us/j/98984587392

]]>
Lecture / Discussion Tue, 04 Jan 2022 15:16:02 -0500 2022-01-21T15:30:00-05:00 2022-01-21T16:30:00-05:00 1100 North University Building Earth and Environmental Sciences Lecture / Discussion 1100 North University Building